Cells
The basic units of life — plant, animal, and bacterial cells.
Genetics
DNA, traits, heredity, and how organisms pass on information.
Ecosystems
How living things interact with each other and their environment.
The science of life, organisms, and ecosystems.
The basic units of life — plant, animal, and bacterial cells.
DNA, traits, heredity, and how organisms pass on information.
How living things interact with each other and their environment.